Pervasive Arctic lead pollution suggests substantial growth in medieval silver production modulated by plague, climate, and conflict

McConnell, Joseph R.; Chellman, Nathan J.; Wilson, Andrew I.; Stohl, Andreas; Arienzo, Monica M.; Eckhardt, Sabine; Fritzsche, Diedrich; Kipfstuhl, Sepp; Opel, Thomas; Place, Philip F.; Steffensen, Jørgen Peder